.hc-root {
  --hc-accent: #3b82f6;
  --hc-accent-glow: rgba(59, 130, 246, 0.35);
  --hc-success: #22c55e;
  --hc-success-glow: rgba(34, 197, 94, 0.35);
  --hc-warn: #f59e0b;
  --hc-warn-glow: rgba(245, 158, 11, 0.35);
  --hc-danger: #ef4444;
  --hc-danger-glow: rgba(239, 68, 68, 0.35);
  --hc-surface: var(--bg-surface);
  --hc-page: var(--bg-page);
  --hc-text: var(--text-main);
  --hc-muted: var(--text-muted);
  --hc-base: var(--text-base);
  --hc-border: var(--border-color);
  --hc-track: var(--border-color);

  width: 100%;
  padding: 1rem 0;
}

.hc-card {
  width: 100%;
  max-width: 640px;
  margin: 0 auto;
  background: var(--hc-surface);
  border: 1px solid var(--hc-border);
  border-radius: 28px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04), 0 8px 24px -4px rgba(0, 0, 0, 0.08);
}

.hc-stage {
  position: relative;
  padding: 2rem 1.5rem 1.5rem;
  border-bottom: 1px solid var(--hc-border);
  overflow: hidden;
}

.hc-stage-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--hc-accent-glow) 0%, transparent 70%);
  transform: translate(-50%, -50%);
  pointer-events: none;
  opacity: 0.5;
  transition: opacity 0.6s ease;
}

.hc-section-label {
  font-size: 0.6rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--hc-accent);
  margin: 0 0 1rem;
  position: relative;
  z-index: 1;
}

.hc-dial {
  width: 100%;
  max-width: 280px;
  margin: 0 auto;
  display: block;
  position: relative;
  z-index: 1;
}

.hc-dial-center {
  font-size: 0.85rem;
  font-weight: 900;
  fill: var(--hc-base);
  letter-spacing: 0.02em;
}

.hc-dial-sub {
  font-size: 0.55rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  fill: var(--hc-muted);
}

.hc-fields-3 {
  grid-template-columns: 1fr 1fr 1fr;
}

.hc-dial-labels {
  display: flex;
  justify-content: space-between;
  margin-top: 0.5rem;
  position: relative;
  z-index: 1;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--hc-muted);
  padding: 0 1rem;
}

.hc-dial-labels b {
  color: var(--hc-text);
  margin-left: 0.25rem;
}

.hc-body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.hc-fields {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.hc-field {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.hc-field-label {
  font-size: 0.6rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--hc-muted);
}

.hc-field-row {
  display: flex;
  align-items: baseline;
  gap: 0.4rem;
}

.hc-field-input {
  width: 100%;
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--hc-text);
  background: transparent;
  border: none;
  border-bottom: 2px solid var(--hc-border);
  padding: 0.2rem 0;
  outline: none;
  transition: border-color 0.2s;
}

.hc-field-input:focus {
  border-color: var(--hc-accent);
}

.hc-field-unit {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--hc-muted);
}

.hc-sliders {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.hc-slider-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.hc-slider-label {
  font-size: 0.65rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--hc-muted);
}

.hc-slider {
  width: 100%;
  accent-color: var(--hc-accent);
  cursor: pointer;
}

.hc-slider-val {
  font-size: 0.85rem;
  font-weight: 800;
  color: var(--hc-base);
}

.hc-tank {
  background: var(--hc-page);
  border: 1px solid var(--hc-border);
  border-radius: 20px;
  padding: 1.25rem;
}

.hc-tank-visual {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-top: 0.5rem;
}

.hc-tank-body {
  width: 36px;
  height: 72px;
  border-radius: 10px;
  border: 2px solid var(--hc-border);
  background: var(--hc-surface);
  position: relative;
  overflow: hidden;
  flex-shrink: 0;
}

.hc-tank-water {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 0%;
  background: linear-gradient(180deg, rgba(59, 130, 246, 0.55), rgba(59, 130, 246, 0.85));
  border-radius: 0 0 8px 8px;
  transition: height 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.hc-tank-water::after {
  content: '';
  position: absolute;
  top: -5px;
  left: 0;
  width: 200%;
  height: 10px;
  background: radial-gradient(ellipse at center, rgba(255, 255, 255, 0.35) 0%, transparent 70%);
  animation: hc-wave 2.5s linear infinite;
  opacity: 0.6;
}

@keyframes hc-wave {
  0% { transform: translateX(-25%); }
  100% { transform: translateX(-75%); }
}

.hc-tank-marks {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 6px 0;
  pointer-events: none;
}

.hc-tank-marks span {
  display: block;
  height: 1px;
  background: rgba(128, 128, 128, 0.15);
  margin: 0 4px;
}

.hc-tank-info {
  display: flex;
  align-items: baseline;
  gap: 0.35rem;
  flex-wrap: wrap;
}

.hc-tank-num {
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--hc-base);
  line-height: 1;
}

.hc-tank-unit {
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--hc-muted);
}

.hc-tank-sub {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--hc-accent);
}

.hc-runtime {
  text-align: center;
  padding: 1rem;
  background: var(--hc-page);
  border: 1px solid var(--hc-border);
  border-radius: 20px;
}

.hc-runtime-ring {
  display: inline-flex;
  align-items: center;
  padding: 0.6rem 1.2rem;
  border-radius: 999px;
  background: var(--hc-surface);
  border: 1px solid var(--hc-border);
  box-shadow: 0 4px 16px -4px var(--hc-accent-glow);
  transition: box-shadow 0.4s ease, transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.hc-runtime-ring.hc-pulse {
  animation: hc-pulse 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes hc-pulse {
  0% { transform: scale(1); }
  50% { transform: scale(1.08); }
  100% { transform: scale(1); }
}

.hc-runtime-value {
  font-size: 1.8rem;
  font-weight: 900;
  color: var(--hc-base);
  line-height: 1;
  letter-spacing: -0.02em;
}

.hc-runtime-label {
  font-size: 0.65rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--hc-accent);
  margin: 0.5rem 0 0;
}

.hc-mold {
  display: flex;
  align-items: center;
  gap: 0.875rem;
  padding: 1rem 1.25rem;
  border-radius: 16px;
  background: var(--hc-page);
  border: 1px solid var(--hc-border);
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.hc-mold-icon svg {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
}

.hc-mold-text {
  flex: 1;
  font-size: 0.9rem;
  font-weight: 800;
  color: var(--hc-text);
}

.hc-mold-badge {
  font-size: 0.7rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  background: var(--hc-surface);
  border: 1px solid var(--hc-border);
}

.hc-mold-high {
  background: rgba(239, 68, 68, 0.06);
  border-color: rgba(239, 68, 68, 0.25);
  box-shadow: 0 4px 16px -4px var(--hc-danger-glow);
  animation: hc-shiver 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes hc-shiver {
  0% { transform: translateX(0); }
  20% { transform: translateX(-3px); }
  40% { transform: translateX(3px); }
  60% { transform: translateX(-2px); }
  80% { transform: translateX(2px); }
  100% { transform: translateX(0); }
}

.hc-mold-high .hc-mold-icon {
  color: var(--hc-danger);
}

.hc-mold-high .hc-mold-badge {
  color: var(--hc-danger);
  border-color: rgba(239, 68, 68, 0.3);
  background: rgba(239, 68, 68, 0.08);
}

.hc-mold-medium {
  background: rgba(245, 158, 11, 0.06);
  border-color: rgba(245, 158, 11, 0.25);
  box-shadow: 0 4px 16px -4px var(--hc-warn-glow);
}

.hc-mold-medium .hc-mold-icon {
  color: var(--hc-warn);
}

.hc-mold-medium .hc-mold-badge {
  color: var(--hc-warn);
  border-color: rgba(245, 158, 11, 0.3);
  background: rgba(245, 158, 11, 0.08);
}

.hc-mold-low {
  background: rgba(34, 197, 94, 0.06);
  border-color: rgba(34, 197, 94, 0.25);
  box-shadow: 0 4px 16px -4px var(--hc-success-glow);
}

.hc-mold-low .hc-mold-icon {
  color: var(--hc-success);
}

.hc-mold-low .hc-mold-badge {
  color: var(--hc-success);
  border-color: rgba(34, 197, 94, 0.3);
  background: rgba(34, 197, 94, 0.08);
}

@media (max-width: 520px) {
  .hc-card {
    border-radius: 22px;
  }

  .hc-stage {
    padding: 1.5rem 1rem 1.25rem;
  }

  .hc-body {
    padding: 1.25rem 1rem;
    gap: 1.25rem;
  }

  .hc-fields,
  .hc-fields-3 {
    grid-template-columns: 1fr;
    gap: 0.875rem;
  }

  .hc-tank-visual {
    gap: 0.75rem;
  }

  .hc-tank-body {
    height: 64px;
    width: 32px;
  }

  .hc-tank-num {
    font-size: 1.3rem;
  }
}